CVE-2025-66382

In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.

CVSS v3 2.9 LOW

2.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.4 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/libexpat/libexpat/issues/1076	Issue Tracking
http://www.openwall.com/lists/oss-security/2025/12/02/1	Mailing List
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-253495.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

History

19 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) En libexpat hasta 2.7.3, un archivo especialmente diseñado con un tamaño aproximado de 2 MiB puede provocar decenas de segundos de tiempo de procesamiento.

Information

Published : 2025-11-28 07:15

Updated : 2026-10-19 13:10

NVD link : CVE-2025-66382

Mitre link : CVE-2025-66382

CVE.ORG link : CVE-2025-66382

JSON object : View

Products Affected

libexpat_project

libexpat

CWE

CWE-407

Inefficient Algorithmic Complexity

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